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@@ -0,0 +1,204 @@
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+#include <stdio.h>
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+#include <Windows.h>
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+#include <Lm.h>
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+#include "enumshares.h"
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+#include "beacon.h"
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+
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+#pragma comment(lib, "Netapi32.lib")
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+
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+
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+
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+
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+
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+//https://github.com/outflanknl/C2-Tool-Collection/blob/main/BOF/Psx/SOURCE/Psx.c
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+HRESULT BeaconPrintToStreamW(_In_z_ LPCWSTR lpwFormat, ...) {
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+ HRESULT hr = S_FALSE;
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+ va_list argList;
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+ DWORD dwWritten = 0;
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+
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+ if (g_lpStream <= (LPSTREAM)1) {
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+ hr = OLE32$CreateStreamOnHGlobal(NULL, TRUE, &g_lpStream);
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+ if (FAILED(hr)) {
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+ return hr;
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+ }
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+ }
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+
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+ if (g_lpwPrintBuffer <= (LPWSTR)1) {
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+ g_lpwPrintBuffer = (LPWSTR)MSVCRT$calloc(MAX_STRING, sizeof(WCHAR));
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+ if (g_lpwPrintBuffer == NULL) {
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+ hr = E_FAIL;
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+ goto CleanUp;
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+ }
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+ }
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+
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+ va_start(argList, lpwFormat);
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+ if (!MSVCRT$_vsnwprintf_s(g_lpwPrintBuffer, MAX_STRING, MAX_STRING -1, lpwFormat, argList)) {
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+ hr = E_FAIL;
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+ goto CleanUp;
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+ }
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+
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+ if (g_lpStream != NULL) {
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+ if (FAILED(hr = g_lpStream->lpVtbl->Write(g_lpStream, g_lpwPrintBuffer, (ULONG)MSVCRT$wcslen(g_lpwPrintBuffer) * sizeof(WCHAR), &dwWritten))) {
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+ goto CleanUp;
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+ }
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+ }
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+
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+ hr = S_OK;
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+
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+CleanUp:
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+
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+ if (g_lpwPrintBuffer != NULL) {
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+ MSVCRT$memset(g_lpwPrintBuffer, 0, MAX_STRING * sizeof(WCHAR));
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+ }
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+
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+ va_end(argList);
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+ return hr;
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+}
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+
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+//https://github.com/outflanknl/C2-Tool-Collection/blob/main/BOF/Psx/SOURCE/Psx.c
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+VOID BeaconOutputStreamW() {
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+ STATSTG ssStreamData = { 0 };
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+ SIZE_T cbSize = 0;
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+ ULONG cbRead = 0;
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+ LARGE_INTEGER pos;
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+ LPWSTR lpwOutput = NULL;
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+
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+ if (FAILED(g_lpStream->lpVtbl->Stat(g_lpStream, &ssStreamData, STATFLAG_NONAME))) {
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+ return;
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+ }
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+
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+ cbSize = ssStreamData.cbSize.LowPart;
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+ lpwOutput = KERNEL32$HeapAlloc(KERNEL32$GetProcessHeap(), HEAP_ZERO_MEMORY, cbSize + 1);
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+ if (lpwOutput != NULL) {
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+ pos.QuadPart = 0;
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+ if (FAILED(g_lpStream->lpVtbl->Seek(g_lpStream, pos, STREAM_SEEK_SET, NULL))) {
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+ goto CleanUp;
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+ }
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+
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+ if (FAILED(g_lpStream->lpVtbl->Read(g_lpStream, lpwOutput, (ULONG)cbSize, &cbRead))) {
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+ goto CleanUp;
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+ }
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+
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+ BeaconPrintf(CALLBACK_OUTPUT, "%ls", lpwOutput);
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+ }
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+
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+CleanUp:
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+ if (g_lpStream != NULL) {
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+ g_lpStream->lpVtbl->Release(g_lpStream);
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+ g_lpStream = NULL;
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+ }
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+
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+ if (g_lpwPrintBuffer != NULL) {
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+ MSVCRT$free(g_lpwPrintBuffer);
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+ g_lpwPrintBuffer = NULL;
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+ }
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+
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+ if (lpwOutput != NULL) {
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+ KERNEL32$HeapFree(KERNEL32$GetProcessHeap(), 0, lpwOutput);
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+ }
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+ return;
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+}
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+
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+
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+
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+
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+PSHARE_INFO_1 listShares(wchar_t *servername) {
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+ PSHARE_INFO_1 pShareInfo = NULL;
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+ DWORD dwEntriesRead = 0, dwTotalEntries = 0, dwResumeHandle = 0;
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+ NET_API_STATUS nStatus;
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+
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+ BeaconPrintToStreamW(L"\nListing shares for: %ls\n", servername);
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+ BeaconPrintToStreamW(L"=====================================================\n");
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+
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+ do {
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+ nStatus = NETAPI32$NetShareEnum(servername, 1, (LPBYTE*)&pShareInfo, MAX_PREFERRED_LENGTH, &dwEntriesRead, &dwTotalEntries, &dwResumeHandle);
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+
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+
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+ if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA)) {
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+ for (DWORD i = 0; i < dwEntriesRead; i++) {
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+ BeaconPrintToStreamW(L"Share Name: %-10ls <- ", pShareInfo[i].shi1_netname);
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+
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+ if (KERNEL32$lstrcmpW(pShareInfo[i].shi1_netname, L"IPC$") == 0) {
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+ BeaconPrintToStreamW(L"[!] No file system access\n");
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+ continue;
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+ }
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+
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+ USE_INFO_2 useInfo = { 0 };
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+ wchar_t fullPath[260];
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+ MSVCRT$_snwprintf(fullPath, sizeof(fullPath) / sizeof(wchar_t) - 1, L"\\\\%s\\%s", servername ? servername : L"localhost", pShareInfo[i].shi1_netname);
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+
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+ useInfo.ui2_remote = fullPath;
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+ useInfo.ui2_asg_type = USE_DISKDEV;
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+ useInfo.ui2_username = NULL; // Use current user's credentials
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+ useInfo.ui2_password = L"";
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+
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+ nStatus = NETAPI32$NetUseAdd(NULL, 2, (LPBYTE)&useInfo, NULL);
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+ if (nStatus == NERR_Success) {
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+ BeaconPrintToStreamW(L"[+] Accessible\n");
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+ NETAPI32$NetUseDel(NULL, fullPath, USE_LOTS_OF_FORCE);
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+ } else {
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+ BeaconPrintToStreamW(L"[-] Error access denied\n");
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+ }
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+
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+ }
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+
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+ NETAPI32$NetApiBufferFree(pShareInfo);
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+ pShareInfo = NULL;
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+ } else {
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+ if (nStatus == ERROR_BAD_NETPATH) {
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+ BeaconPrintToStreamW(L"Connection error: ERROR_BAD_NETPATH\n");
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+ } else if (nStatus == ERROR_ACCESS_DENIED) {
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+ BeaconPrintToStreamW(L"Connection error: ERROR_ACCESS_DENIED\n");
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+ } else {
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+ BeaconPrintToStreamW(L"Connection error code: %d\n", nStatus);
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+ }
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+ break;
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+ }
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+
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+ } while (nStatus == ERROR_MORE_DATA);
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+
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+ return pShareInfo;
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+}
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+
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+int go(char *args, int len) {
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+ char* hostname;
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+ char* nextHostname;
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+ int iBytesLen = 0;
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+ CHAR *hostFileBytes;
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+ WCHAR wHostname[MAX_PATH];
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+ datap parser;
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+
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+ BeaconDataParse(&parser, args, len);
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+ hostFileBytes = BeaconDataExtract(&parser, &iBytesLen);
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+
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+ if(iBytesLen != 0) {
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+ BeaconPrintf(CALLBACK_OUTPUT, "[+] Loaded hostname file in memory with a size of %d bytes\n[*] Start share enumeration..\n", iBytesLen);
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+
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+ hostname = MSVCRT$strtok(hostFileBytes, "\r\n");
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+ while (hostname != NULL) {
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+ nextHostname = MSVCRT$strtok(NULL, "\r\n");
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+ if (nextHostname == NULL) {
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+ break;
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+ }
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+
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+ KERNEL32$MultiByteToWideChar(CP_ACP, 0, hostname, -1, wHostname, MAX_PATH);
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+ PSHARE_INFO_1 pShareInfo = listShares(wHostname);
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+ hostname = nextHostname;
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+
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+ BeaconOutputStreamW();
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+ NETAPI32$NetApiBufferFree(pShareInfo);
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+
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+ }
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+
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+ BeaconPrintf(CALLBACK_OUTPUT, "[+] Done!\n");
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+
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+ } else {
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+ BeaconPrintf(CALLBACK_ERROR, "Couldn't load the host file from disk.\n");
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+ }
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+
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+ return 0;
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+}
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+
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+
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+
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+
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